4. (5 points) As described above, Nissan produces the NV200 and the e-NV200 in Barcelona, Spain. At first look, the two models look very similar and during production, employees will be sharing workstations and labour hours. However, the production version of the e-NV200 contains 30% new components as compared to the NV200. For simplicity, subdivide the tasks to manufacture both vans into two tasks only: general assembly (120 hours per day available) and engine installation (200 hours per day available). Assume that each e-NV200 yields a profit of $2000, requires 8 hours for general assembly and 10 hours for engine installation. Each NV200 yields a profit of $1500, requires 6 hours of general assembly and 12 hours for engine installation. Nissan wants to determine the quantity of each van to produce in order to maximize profit. Develop a linear programming model for this Nissan production problem. Solve this model using graphical analysis.